GE GL 311 F3/4031 P/VE - Functional Testing; Test Operations; Measuring the Running Time of the Charging Motor

COMMISSIONING
REV7 /REV6 OI 250 (EN) 59 / 146
7.6 Functional Testing
7.6.1 Test Operations
• Carry out five closing and five opening operations by remote
control.
7.6.2 Measuring the Running Time of the Charging Motor
After each closing operation, the charging motor automatically re-
charges the closing spring.
• Carry out a closing operation and measure the running time of the
charging motor.
• Compare the running time with the reference values in the routine
test certificate and enter it in the checklist.
Operations at gas pressures below UW2 can result in mechani-
cal damage to the circuit breaker.
Therefore:
- Never operate the circuit breaker at gas pressures below
UW2 (red area on the density monitor indicator).
CAUTION
The pressurized components of the pole columns can be dama-
ged by improper handling. Such damage can cause the pole co-
lumns to burst as the result of breaker vibrations. This can result
in serious personal injury or property damage.
Therefore:
- Always carry out test operations from a protected positi-
on.
WARNING
Long-lasting applied voltage may damage the shunt release
coils.
Therefore:
- Connect coils only by way of the terminals provided.
- Apply voltage to the coils for no longer than three se-
conds.
CAUTION